首页>
外国专利>
Liquid crystal display element includes polariser on front, and reflective element behind liquid crystal cell
Liquid crystal display element includes polariser on front, and reflective element behind liquid crystal cell
展开▼
机译:液晶显示元件在液晶单元的正面具有偏振镜,在液晶单元的背面具有反射镜。
展开▼
页面导航
摘要
著录项
相似文献
摘要
The liquid crystal material (40) is contained between two parallel substrates (30,50). Electrical signals are applied to switch between two textures. The structure includes a polariser (10) associated with the front surface of the device. A reflective specular or diffusing element (60) is placed on the rear surface, allowing light to pass through the device twice and return towards the observer. The bi-stable device comprises a liquid crystal material (40) contained between two parallel substrates (30,50), and an aligning system to provide two stable or meta-stable textures. The liquid crystal material may be a liquid crystal, or a mixture of liquid crystal in the nematic phase. Electrical signals are applied to switch between the two textures. The structure includes a polariser (10) associated with the front surface of the device. A reflective specular or diffusing element (60) is placed on the rear surface, allowing light to pass through the device twice and return towards the observer. A compensator (20) is placed between the liquid crystal material and the polariser, the compensator having an optical retardation (dc DELTA nc) which is close to lambda 0/4.
展开▼